“Ukrainian officials arrived to the site where the convoy stands, where they were provided with all necessary documentation concerning the convoy and the cargo,” the source said, adding that the documents were being examined at the moment.

The group of 41 Ukrainian border service representatives and 18 customs officials began inspecting the Russian aid at the Donetsk crossing on Friday morning, defence officials in Kiev said in a statement.

Russia “is ready to provide all necessary documents and information about the cargo,” the source said, adding that when the issue was resolved with Ukrainian representatives the cargo would be transferred to International Committee of the Red Cross (ICRC) officials acting as mediators.

Russia's convoy of 262 trucks set off for the Ukrainian border carrying about 2,000 tons of food, medicines and household goods on August 12.